footer{
    width: 100%;
    height: 45px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    background: #f3f3f3;
    a{
        text-align: center;
        color: #000;
        text-decoration: none;
        &.active{
            color:red
        }
    }
}
